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23 KiB
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Returns an object with properties that describe the DB2 database server</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.db2-server-info" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">db2_server_info</h1>
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<p class="verinfo">(PECL ibm_db2 >= 1.1.1)</p><p class="refpurpose"><span class="refname">db2_server_info</span> — <span class="dc-title">Returns an object with properties that describe the DB2 database server</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.db2-server-info-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>db2_server_info</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
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) : <span class="type">object</span></div>
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<p class="para rdfs-comment">
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This function returns an object with read-only properties that return
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information about the IBM DB2, Cloudscape, or Apache Derby database server.
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The following table lists the database server properties:
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<table class="doctable table">
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<caption><strong>Database server properties</strong></caption>
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<thead>
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<tr>
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<th>Property name</th>
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<th>Return type</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>DBMS_NAME</td>
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<td>string</td>
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<td>The name of the database server to which you are
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connected. For DB2 servers this is a combination of
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<em>DB2</em> followed by the operating system on which
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the database server is running.</td>
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</tr>
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<tr>
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<td>DBMS_VER</td>
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<td>string</td>
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<td>The version of the database server, in the form of a string
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"MM.mm.uuuu" where <var class="varname"><var class="varname">MM</var></var> is the major version,
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<var class="varname"><var class="varname">mm</var></var> is the minor version,
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and <var class="varname"><var class="varname">uuuu</var></var> is the update. For example, "08.02.0001"
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represents major version 8, minor version 2, update 1.
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</td>
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</tr>
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<tr>
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<td>DB_CODEPAGE</td>
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<td>int</td>
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<td>The code page of the database to which you are connected.</td>
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</tr>
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<tr>
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<td>DB_NAME</td>
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<td>string</td>
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<td>The name of the database to which you are connected.</td>
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</tr>
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<tr>
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<td>DFT_ISOLATION</td>
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<td>string</td>
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<td>
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<p class="para">The default transaction isolation level supported by the
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server:
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<dl>
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<dt>
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UR</dt>
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<dd>
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<p class="para">
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Uncommitted read: changes are immediately visible by all
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concurrent transactions.
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</p>
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</dd>
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<dt>
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CS</dt>
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<dd>
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<p class="para">
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Cursor stability: a row read by one transaction can be altered and
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committed by a second concurrent transaction.
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</p>
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</dd>
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<dt>
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RS</dt>
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<dd>
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<p class="para">
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Read stability: a transaction can add or remove rows matching a
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search condition or a pending transaction.
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</p>
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</dd>
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<dt>
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RR</dt>
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<dd>
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<p class="para">
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Repeatable read: data affected by pending transaction is not
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available to other transactions.
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</p>
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</dd>
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<dt>
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NC</dt>
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<dd>
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<p class="para">
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No commit: any changes are visible at the end of a successful
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operation. Explicit commits and rollbacks are not allowed.
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</p>
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</dd>
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</dl>
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</p>
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</td>
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</tr>
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<tr>
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<td>IDENTIFIER_QUOTE_CHAR</td>
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<td>string</td>
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<td>The character used to delimit an identifier.</td>
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</tr>
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<tr>
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<td>INST_NAME</td>
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<td>string</td>
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<td>The instance on the database server that contains the
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database.</td>
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</tr>
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<tr>
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<td>ISOLATION_OPTION</td>
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<td>array</td>
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<td>An array of the isolation options supported by the
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database server. The isolation options are described in
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the DFT_ISOLATION property.</td>
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</tr>
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<tr>
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<td>KEYWORDS</td>
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<td>array</td>
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<td>An array of the keywords reserved by the database
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server.</td>
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</tr>
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<tr>
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<td>LIKE_ESCAPE_CLAUSE</td>
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<td>bool</td>
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<td><strong><code>TRUE</code></strong> if the database server supports the
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use of <em>%</em> and <em>_</em> wildcard
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characters. <strong><code>FALSE</code></strong> if the database server does not
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support these wildcard characters.</td>
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</tr>
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<tr>
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<td>MAX_COL_NAME_LEN</td>
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<td>int</td>
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<td>Maximum length of a column name supported by the database
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server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>MAX_IDENTIFIER_LEN</td>
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<td>int</td>
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<td>Maximum length of an SQL identifier supported by the database
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server, expressed in characters.</td>
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</tr>
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<tr>
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<td>MAX_INDEX_SIZE</td>
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<td>int</td>
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<td>Maximum size of columns combined in an index supported by the
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database server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>MAX_PROC_NAME_LEN</td>
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<td>int</td>
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<td>Maximum length of a procedure name supported by the database
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server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>MAX_ROW_SIZE</td>
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<td>int</td>
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<td>Maximum length of a row in a base table supported by the
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database server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>MAX_SCHEMA_NAME_LEN</td>
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<td>int</td>
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<td>Maximum length of a schema name supported by the database
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server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>MAX_STATEMENT_LEN</td>
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<td>int</td>
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<td>Maximum length of an SQL statement supported by the database
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server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>MAX_TABLE_NAME_LEN</td>
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<td>int</td>
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<td>Maximum length of a table name supported by the database
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server, expressed in bytes.</td>
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</tr>
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<tr>
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<td>NON_NULLABLE_COLUMNS</td>
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<td>bool</td>
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<td><strong><code>TRUE</code></strong> if the database server supports columns that can be
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defined as NOT NULL, <strong><code>FALSE</code></strong> if the database server does not support
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columns defined as NOT NULL.</td>
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</tr>
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<tr>
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<td>PROCEDURES</td>
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<td>bool</td>
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<td><strong><code>TRUE</code></strong> if the database server supports the use of the CALL
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statement to call stored procedures, <strong><code>FALSE</code></strong> if the database
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server does not support the CALL statement.</td>
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</tr>
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<tr>
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<td>SPECIAL_CHARS</td>
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<td>string</td>
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<td>A string containing all of the characters other than
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a-Z, 0-9, and underscore that can be used in an identifier name.</td>
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</tr>
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<tr>
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<td>SQL_CONFORMANCE</td>
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<td>string</td>
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<td>
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<p class="para">The level of conformance to the ANSI/ISO SQL-92 specification
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offered by the database server:
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<dl>
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<dt>
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ENTRY</dt>
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<dd>
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<p class="para">
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Entry-level SQL-92 compliance.
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</p>
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</dd>
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<dt>
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FIPS127</dt>
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<dd>
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<p class="para">
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FIPS-127-2 transitional compliance.
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</p>
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</dd>
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<dt>
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FULL</dt>
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<dd>
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<p class="para">
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Full level SQL-92 compliance.
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</p>
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</dd>
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<dt>
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INTERMEDIATE</dt>
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<dd>
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<p class="para">
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Intermediate level SQL-92 compliance.
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</p>
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</dd>
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</dl>
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</p>
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.db2-server-info-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">connection</code></dt>
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<dd>
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<p class="para">
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Specifies an active DB2 client connection.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.db2-server-info-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns an object on a successful call. Returns <strong><code>FALSE</code></strong> on failure.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.db2-server-info-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-1273">
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<p><strong>Example #1 A <span class="function"><strong>db2_server_info()</strong></span> example</strong></p>
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<div class="example-contents"><p>
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To retrieve information about the server, you must pass a valid
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database connection resource to <span class="function"><strong>db2_server_info()</strong></span>.
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</p></div>
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<div class="example-contents"><div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'sample'</span><span style="color: #007700">, </span><span style="color: #DD0000">'db2inst1'</span><span style="color: #007700">, </span><span style="color: #DD0000">'ibmdb2'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$server </span><span style="color: #007700">= </span><span style="color: #0000BB">db2_server_info</span><span style="color: #007700">( </span><span style="color: #0000BB">$conn </span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">$server</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"DBMS_NAME: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">DBMS_NAME </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"DBMS_VER: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">DBMS_VER </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"DB_CODEPAGE: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">DB_CODEPAGE </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"DB_NAME: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">DB_NAME </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"INST_NAME: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">INST_NAME </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"SPECIAL_CHARS: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">SPECIAL_CHARS </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"KEYWORDS: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">sizeof</span><span style="color: #007700">(</span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">KEYWORDS</span><span style="color: #007700">) );<br /> echo </span><span style="color: #DD0000">"DFT_ISOLATION: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">DFT_ISOLATION </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"ISOLATION_OPTION: "</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">$il </span><span style="color: #007700">= </span><span style="color: #DD0000">''</span><span style="color: #007700">;<br /> foreach( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">ISOLATION_OPTION </span><span style="color: #007700">as </span><span style="color: #0000BB">$opt </span><span style="color: #007700">)<br /> {<br /> </span><span style="color: #0000BB">$il </span><span style="color: #007700">.= </span><span style="color: #0000BB">$opt</span><span style="color: #007700">.</span><span style="color: #DD0000">" "</span><span style="color: #007700">;<br /> }<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$il </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"SQL_CONFORMANCE: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">SQL_CONFORMANCE </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"PROCEDURES: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">PROCEDURES </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"IDENTIFIER_QUOTE_CHAR: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">IDENTIFIER_QUOTE_CHAR </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"LIKE_ESCAPE_CLAUSE: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">LIKE_ESCAPE_CLAUSE </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_COL_NAME_LEN: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_COL_NAME_LEN </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_ROW_SIZE: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_ROW_SIZE </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_IDENTIFIER_LEN: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_IDENTIFIER_LEN </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_INDEX_SIZE: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_INDEX_SIZE </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_PROC_NAME_LEN: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_PROC_NAME_LEN </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_SCHEMA_NAME_LEN: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_SCHEMA_NAME_LEN </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_STATEMENT_LEN: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_STATEMENT_LEN </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"MAX_TABLE_NAME_LEN: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">MAX_TABLE_NAME_LEN </span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"NON_NULLABLE_COLUMNS: "</span><span style="color: #007700">; </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">( </span><span style="color: #0000BB">$server</span><span style="color: #007700">-></span><span style="color: #0000BB">NON_NULLABLE_COLUMNS </span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">db2_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div></div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen"><div class="cdata"><pre>DBMS_NAME: string(9) "DB2/LINUX"
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DBMS_VER: string(10) "08.02.0000"
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DB_CODEPAGE: int(1208)
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DB_NAME: string(6) "SAMPLE"
|
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INST_NAME: string(8) "db2inst1"
|
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SPECIAL_CHARS: string(2) "@#"
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|
KEYWORDS: int(179)
|
|
DFT_ISOLATION: string(2) "CS"
|
|
ISOLATION_OPTION: string(12) "UR CS RS RR "
|
|
SQL_CONFORMANCE: string(7) "FIPS127"
|
|
PROCEDURES: bool(true)
|
|
IDENTIFIER_QUOTE_CHAR: string(1) """
|
|
LIKE_ESCAPE_CLAUSE: bool(true)
|
|
MAX_COL_NAME_LEN: int(30)
|
|
MAX_ROW_SIZE: int(32677)
|
|
MAX_IDENTIFIER_LEN: int(18)
|
|
MAX_INDEX_SIZE: int(1024)
|
|
MAX_PROC_NAME_LEN: int(128)
|
|
MAX_SCHEMA_NAME_LEN: int(30)
|
|
MAX_STATEMENT_LEN: int(2097152)
|
|
MAX_TABLE_NAME_LEN: int(128)
|
|
NON_NULLABLE_COLUMNS: bool(true)</pre></div></div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.db2-server-info-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="db2_client_info.html" class="function" rel="rdfs-seeAlso">db2_client_info()</a> - Returns an object with properties that describe the DB2 database client</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |